Soo Dong Baek

I've got two questions.
I'm wondering which engine oil is better for rotary engines.
Some people say that a rotary engine makes lots of heat, so synthetic oil which can endure heat well, is better than mineral oil.
others say that synthetic oil is too viscous and sticky so it's not good for rotary engines which burn the oil little by little.

I can't decide it. give me some advice, plz.

There are many types of engine oil like this "?W-? "
what is best for rotary engines? ?W-?

give me some tips for rotary motors,plz.

diabolical1

iTrader: (3)

use a good quality mineral (Dino) oil ... 10W30 or 10W40
the synthetics resist burning (consumption), which rotaries need. if you use synthetic, youd be advised to use pre-mix with it.

Pedestrian X

pre-mix all the way

680RWHP12A

use 20w50 synthetic, i like royal purple,it lubricates the bearings better, also premix the gas, with 2 stroke oil.....

Ultralights

what ratio do you use the pre mix?

jamespond24

iTrader: (13)

I read in the owner's manual that you are suppose to use synthetic oil on an fd. Why is this? And why 20-50w instead of 10-30w?

madscientist

iTrader: (1)

what kind of oil do you use in TII? just curious because i have to do an oil change this weekend...and its my first since getting the car.

JONSKI

I use Mobil1 15w-50 full synthetic and Marvel Mystery Oil pre-mix.

LetsGO7

iTrader: (2)

Alot of choices, as you can see, to mix things up...10w-30 (castrol) with 2-stroke pre-mix. I change my oil when the oil starts to change color.

-joe

sszablya

We just had a huge discussion in the FD forum about this...

https://www.rx7club.com/forum/showth...ighlight=Mobil